*
*/
-// INTERNAL INCLUDES
-#include "dali-scene3d/public-api/loader/mesh-definition.h"
+// CLASS HEADER
+#include <dali-scene3d/public-api/loader/mesh-definition.h>
// EXTERNAL INCLUDES
#include <dali/devel-api/adaptor-framework/file-stream.h>
#include <fstream>
#include <type_traits>
-namespace Dali
-{
-namespace Scene3D
-{
-namespace Loader
+namespace Dali::Scene3D::Loader
{
namespace
{
+template<bool use32BitIndices>
class IndexProvider
{
public:
+ using IndexType = typename std::conditional_t<use32BitIndices, uint32_t, uint16_t>;
IndexProvider(const uint16_t* indices)
: mData(reinterpret_cast<uintptr_t>(indices)),
mFunc(indices ? IncrementPointer : Increment)
{
}
- uint16_t operator()()
+ IndexType operator()()
{
return mFunc(mData);
}
private:
- static uint16_t Increment(uintptr_t& data)
+ static IndexType Increment(uintptr_t& data)
{
- return static_cast<uint16_t>(data++);
+ // mData was 'zero' at construct time. Just simply return counter start with 0.
+ return static_cast<IndexType>(data++);
}
- static uint16_t IncrementPointer(uintptr_t& data)
+ static IndexType IncrementPointer(uintptr_t& data)
{
- auto iPtr = reinterpret_cast<const uint16_t*>(data);
+ auto iPtr = reinterpret_cast<const IndexType*>(data);
auto result = *iPtr;
data = reinterpret_cast<uintptr_t>(++iPtr);
return result;
}
uintptr_t mData;
- uint16_t (*mFunc)(uintptr_t&);
+ IndexType (*mFunc)(uintptr_t&);
};
-const std::string QUAD("quad");
+const char* QUAD("quad");
///@brief Reads a blob from the given stream @a source into @a target, which must have
/// at least @a descriptor.length bytes.
uint32_t readSize = 0;
uint32_t totalSize = (descriptor.mLength / descriptor.mElementSizeHint) * descriptor.mStride;
while(readSize < totalSize &&
- source.read(reinterpret_cast<char*>(target), descriptor.mElementSizeHint) &&
- source.seekg(diff, std::istream::cur))
+ source.read(reinterpret_cast<char*>(target), descriptor.mElementSizeHint))
{
readSize += descriptor.mStride;
target += descriptor.mElementSizeHint;
+ source.seekg(diff, std::istream::cur);
}
return readSize == totalSize;
}
raw.mAttribs.push_back({"aJoints", Property::VECTOR4, static_cast<uint32_t>(outBufferSize / sizeof(Vector4)), std::move(buffer)});
}
-void GenerateNormals(MeshDefinition::RawData& raw)
+template<typename T>
+void ReadWeightAccessor(MeshDefinition::RawData& raw, const MeshDefinition::Accessor& accessor, std::istream& source, const std::string& meshPath)
{
+ constexpr auto sizeofBlobUnit = sizeof(T) * 4;
+
+ DALI_ASSERT_ALWAYS(((accessor.mBlob.mLength % sizeofBlobUnit == 0) ||
+ accessor.mBlob.mStride >= sizeofBlobUnit) &&
+ "weights buffer length not a multiple of element size");
+ const auto inBufferSize = accessor.mBlob.GetBufferSize();
+ const auto outBufferSize = (sizeof(Vector4) / sizeofBlobUnit) * inBufferSize;
+
+ std::vector<uint8_t> buffer(outBufferSize);
+ auto inBuffer = buffer.data() + outBufferSize - inBufferSize;
+ if(!ReadAccessor(accessor, source, inBuffer))
+ {
+ ExceptionFlinger(ASSERT_LOCATION) << "Failed to read weights from '" << meshPath << "'.";
+ }
+
+ if constexpr(sizeofBlobUnit != sizeof(Vector4))
+ {
+ auto floats = reinterpret_cast<float*>(buffer.data());
+ const auto end = inBuffer + inBufferSize;
+ while(inBuffer != end)
+ {
+ const auto value = *reinterpret_cast<T*>(inBuffer);
+ // Normalize weight value. value /= 255 for uint8_t weight, and value /= 65535 for uint16_t weight.
+ *floats = static_cast<float>(value) / static_cast<float>((1 << (sizeof(T) * 8)) - 1);
+
+ inBuffer += sizeof(T);
+ ++floats;
+ }
+ }
+ raw.mAttribs.push_back({"aWeights", Property::VECTOR4, static_cast<uint32_t>(outBufferSize / sizeof(Vector4)), std::move(buffer)});
+}
+
+template<bool use32BitsIndices, typename IndexProviderType = IndexProvider<use32BitsIndices>>
+bool GenerateNormals(MeshDefinition::RawData& raw)
+{
+ using IndexType = typename IndexProviderType::IndexType;
+
+ // mIndicies size must be even if we use 32bit indices.
+ if(DALI_UNLIKELY(use32BitsIndices && !raw.mIndices.empty() && !(raw.mIndices.size() % (sizeof(IndexType) / sizeof(uint16_t)) == 0)))
+ {
+ return false;
+ }
+
auto& attribs = raw.mAttribs;
DALI_ASSERT_DEBUG(attribs.size() > 0); // positions
- IndexProvider getIndex(raw.mIndices.data());
- const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size());
+ IndexProviderType getIndex(raw.mIndices.data());
+
+ const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size() / (sizeof(IndexType) / sizeof(uint16_t)));
auto* positions = reinterpret_cast<const Vector3*>(attribs[0].mData.data());
for(uint32_t i = 0; i < numIndices; i += 3)
{
- uint16_t indices[]{getIndex(), getIndex(), getIndex()};
- Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
+ IndexType indices[]{getIndex(), getIndex(), getIndex()};
+ Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
Vector3 a = pos[1] - pos[0];
Vector3 b = pos[2] - pos[0];
}
attribs.push_back({"aNormal", Property::VECTOR3, attribs[0].mNumElements, std::move(buffer)});
+
+ return true;
}
-template<bool useVec3, bool hasUvs, typename T = std::conditional_t<useVec3, Vector3, Vector4>, typename = std::enable_if_t<(std::is_same<T, Vector3>::value || std::is_same<T, Vector4>::value)>>
+template<bool use32BitsIndices, bool useVec3, bool hasUvs, typename T = std::conditional_t<useVec3, Vector3, Vector4>, typename = std::enable_if_t<(std::is_same<T, Vector3>::value || std::is_same<T, Vector4>::value)>, typename IndexProviderType = IndexProvider<use32BitsIndices>>
bool GenerateTangents(MeshDefinition::RawData& raw)
{
+ using IndexType = typename IndexProviderType::IndexType;
+
+ // mIndicies size must be even if we use 32bit indices.
+ if(DALI_UNLIKELY(use32BitsIndices && !raw.mIndices.empty() && !(raw.mIndices.size() % (sizeof(IndexType) / sizeof(uint16_t)) == 0)))
+ {
+ return false;
+ }
+
auto& attribs = raw.mAttribs;
// Required positions, normals, uvs (if we have). If not, skip generation
- if(attribs.size() < (2 + static_cast<size_t>(hasUvs)))
+ if(DALI_UNLIKELY(attribs.size() < (2 + static_cast<size_t>(hasUvs))))
{
return false;
}
if constexpr(hasUvs)
{
- IndexProvider getIndex(raw.mIndices.data());
- const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size());
+ IndexProviderType getIndex(raw.mIndices.data());
+
+ const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size() / (sizeof(IndexType) / sizeof(uint16_t)));
auto* positions = reinterpret_cast<const Vector3*>(attribs[0].mData.data());
auto* uvs = reinterpret_cast<const Vector2*>(attribs[2].mData.data());
for(uint32_t i = 0; i < numIndices; i += 3)
{
- uint16_t indices[]{getIndex(), getIndex(), getIndex()};
- Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
- Vector2 uv[]{uvs[indices[0]], uvs[indices[1]], uvs[indices[2]]};
+ IndexType indices[]{getIndex(), getIndex(), getIndex()};
+ Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
+ Vector2 uv[]{uvs[indices[0]], uvs[indices[1]], uvs[indices[2]]};
float x0 = pos[1].x - pos[0].x;
float y0 = pos[1].y - pos[0].y;
{
ExceptionFlinger(ASSERT_LOCATION) << "Failed to read indices from '" << path << "'.";
}
-
- auto u16s = raw.mIndices.data();
- auto u32s = reinterpret_cast<uint32_t*>(raw.mIndices.data());
- auto end = u32s + indexCount;
- while(u32s != end)
- {
- *u16s = static_cast<uint16_t>(*u32s);
- ++u16s;
- ++u32s;
- }
-
- raw.mIndices.resize(indexCount);
}
else if(MaskMatch(mFlags, U8_INDICES))
{
mIndices.mBlob.mStride >= sizeof(uint8_t)) &&
"Index buffer length not a multiple of element size");
const auto indexCount = mIndices.mBlob.GetBufferSize() / sizeof(uint8_t);
- raw.mIndices.resize(indexCount); // NOTE: we need space for uint32_ts initially.
+ raw.mIndices.resize(indexCount); // NOTE: we need space for uint16_ts initially.
std::string path;
auto u8s = reinterpret_cast<uint8_t*>(raw.mIndices.data()) + indexCount;
else if(mNormals.mBlob.mLength != 0 && isTriangles)
{
DALI_ASSERT_DEBUG(mNormals.mBlob.mLength == mPositions.mBlob.GetBufferSize());
- GenerateNormals(raw);
- hasNormals = true;
+ static const std::function<bool(RawData&)> GenerateNormalsFunction[2] =
+ {
+ GenerateNormals<false>,
+ GenerateNormals<true>,
+ };
+ const bool generateSuccessed = GenerateNormalsFunction[MaskMatch(mFlags, U32_INDICES)](raw);
+ if(!generateSuccessed)
+ {
+ DALI_LOG_ERROR("Failed to generate normal\n");
+ }
+ else
+ {
+ hasNormals = true;
+ }
}
const auto hasUvs = mTexCoords.IsDefined();
}
}
- mTexCoords.mBlob.ApplyMinMax(static_cast<uint32_t>(bufferSize / sizeof(Vector2)), reinterpret_cast<float*>(buffer.data()));
+ mTexCoords.mBlob.ApplyMinMax(static_cast<uint32_t>(uvCount), reinterpret_cast<float*>(buffer.data()));
raw.mAttribs.push_back({"aTexCoord", Property::VECTOR2, static_cast<uint32_t>(uvCount), std::move(buffer)});
}
else if(mTangents.mBlob.mLength != 0 && hasNormals && isTriangles)
{
DALI_ASSERT_DEBUG(mTangents.mBlob.mLength == mNormals.mBlob.GetBufferSize());
- static const std::function<bool(RawData&)> GenerateTangentsFunction[2][2] =
+ static const std::function<bool(RawData&)> GenerateTangentsFunction[2][2][2] =
{
{
- GenerateTangents<false, false>,
- GenerateTangents<false, true>,
+ {
+ GenerateTangents<false, false, false>,
+ GenerateTangents<false, false, true>,
+ },
+ {
+ GenerateTangents<false, true, false>,
+ GenerateTangents<false, true, true>,
+ },
},
{
- GenerateTangents<true, false>,
- GenerateTangents<true, true>,
- },
- };
- const bool generateSuccessed = GenerateTangentsFunction[mTangentType == Property::VECTOR3][hasUvs](raw);
+ {
+ GenerateTangents<true, false, false>,
+ GenerateTangents<true, false, true>,
+ },
+ {
+ GenerateTangents<true, true, false>,
+ GenerateTangents<true, true, true>,
+ },
+ }};
+ const bool generateSuccessed = GenerateTangentsFunction[MaskMatch(mFlags, U32_INDICES)][mTangentType == Property::VECTOR3][hasUvs](raw);
if(!generateSuccessed)
{
DALI_LOG_ERROR("Failed to generate tangents\n");
raw.mAttribs.push_back({"aVertexColor", propertyType, static_cast<uint32_t>(bufferSize / propertySize), std::move(buffer)});
}
}
+ else
+ {
+ std::vector<uint8_t> buffer(raw.mAttribs[0].mNumElements * sizeof(Vector4));
+ auto colors = reinterpret_cast<Vector4*>(buffer.data());
+
+ for(uint32_t i = 0; i < raw.mAttribs[0].mNumElements; i++)
+ {
+ colors[i] = Vector4::ONE;
+ }
+
+ raw.mAttribs.push_back({"aVertexColor", Property::VECTOR4, raw.mAttribs[0].mNumElements, std::move(buffer)});
+ }
if(IsSkinned())
{
ReadJointAccessor<float>(raw, mJoints0, streamJoint, pathJoint);
}
- DALI_ASSERT_ALWAYS(((mWeights0.mBlob.mLength % sizeof(Vector4) == 0) ||
- mWeights0.mBlob.mStride >= sizeof(Vector4)) &&
- "Weights buffer length not a multiple of element size");
- const auto bufferSize = mWeights0.mBlob.GetBufferSize();
- std::vector<uint8_t> buffer(bufferSize);
-
std::string pathWeight;
auto& streamWeight = GetAvailableData(fileStream, meshPath, buffers[mWeights0.mBufferIdx], pathWeight);
- if(!ReadAccessor(mWeights0, streamWeight, buffer.data()))
+ if(MaskMatch(mFlags, U16_WEIGHT))
{
- ExceptionFlinger(ASSERT_LOCATION) << "Failed to read weights from '" << pathWeight << "'.";
+ ReadWeightAccessor<uint16_t>(raw, mWeights0, streamWeight, pathWeight);
+ }
+ else if(MaskMatch(mFlags, U8_WEIGHT))
+ {
+ ReadWeightAccessor<uint8_t>(raw, mWeights0, streamWeight, pathWeight);
+ }
+ else
+ {
+ ReadWeightAccessor<float>(raw, mWeights0, streamWeight, pathWeight);
}
-
- raw.mAttribs.push_back({"aWeights", Property::VECTOR4, static_cast<uint32_t>(bufferSize / sizeof(Vector4)), std::move(buffer)});
}
// Calculate the Blob for the blend shapes.
{
if(!raw.mIndices.empty())
{
- meshGeometry.geometry.SetIndexBuffer(raw.mIndices.data(), raw.mIndices.size());
+ if(MaskMatch(mFlags, U32_INDICES))
+ {
+ // TODO : We can only store indeces as uint16_type. Send Dali::Geometry that we use it as uint32_t actual.
+ meshGeometry.geometry.SetIndexBuffer(reinterpret_cast<const uint32_t*>(raw.mIndices.data()), raw.mIndices.size() / 2);
+ }
+ else
+ {
+ meshGeometry.geometry.SetIndexBuffer(raw.mIndices.data(), raw.mIndices.size());
+ }
}
for(auto& a : raw.mAttribs)
return meshGeometry;
}
-} // namespace Loader
-} // namespace Scene3D
-} // namespace Dali
+void MeshDefinition::RetrieveBlendShapeComponents(bool& hasPositions, bool& hasNormals, bool& hasTangents) const
+{
+ for(const auto& blendShape : mBlendShapes)
+ {
+ hasPositions = hasPositions || blendShape.deltas.IsDefined();
+ hasNormals = hasNormals || blendShape.normals.IsDefined();
+ hasTangents = hasTangents || blendShape.tangents.IsDefined();
+ }
+}
+
+} // namespace Dali::Scene3D::Loader
projects / platform / core / uifw / dali-toolkit.git / blobdiff